Volume-regulator gauge



voLuua REGULATOR GAUGE FLld July l2, 1923 2 Ssctn-Shit 1 a u l 1 ,lll/ll m 4| IWW, l l

m5 ATT NEY Patented Sept. 2, 1924.

escasas VUNITED s'rpiirasA Partnrg Afmlslclg.f

FORREST C. REED, F EASTON, PENNSYLVANIA, ASSIGNOR T INGERSOLL-RAND" jCOMPANY, OF JERSEY CITY., NEW JERSEY, A CORPORATION 0F NEW JERSEY.

ventina-REGULATOR GAUGE.

Appummn mea July 12, 1923. `serial No. 651,098.

To all whom t may concern:

Be. it known that I, FoRREsT C. REED, a

citizen ofthe United States, and a resident of..Easton, county of Northampton, and Stat@J of Pennsylvania, have invented a 'cere tain Volume-Regulator Gauge, of which the following is a specification accompanied by drawings. Y

This invention relates to a volume regulator gauge for constant volume governing of turbo blowers, turbo compressors, or similar machines.

The object of the invention is to enable the fluid volume supplied to a turbo blower, turbo compressor or similarmaChine, to be determined' in a simple and improved manner.

Anotherobject of the invention is toproduce a gauge having a drum whichv may be adjusted for diiferentbraroinetric conditions, which'will determine the fluid volume supplied to a turbo blower, turbo compresser, or similar machine, so that a constant weight of supplied oxygen may be maintained. By usingv a drum calibrated in fluid volumes under standard conditions, an extremely accurate reading may be obtained, as the calibrations maybe on a largerscale thus giving a flatter curve. u J

Further object-s of the invention will hereinafter appear, and the invention is shown ink one of its preferred forms in the drawings, in which F igure 1 is a side elevation in vertical -section off-a'volume regulator gauge connected to the intake of a turbo compressor;

Figure 2' is a Vdetail fragmentary view in side elevation of the upper portion of the gauge, shown in Figure 1;

i0 Figure 3 is a horizontal section-taken onA the line'-B of Figure 1;

Figure 4V is an enlarged detail view inr side elevation of the upper portion ofl a modified form of the invention, .and Figure 5 is an' enlarged vertical sectional view of the upper portion of the gauge shown in Figure l. 1

Y Referring to the drawings,'a turbo compresser A is shown mounted' in the usual 00 manner on the foundation B, the'fl'oor line C being indicated for purposes of illustration. -'The intake conduit D` of the compressor is preferably formed with.' a restricted portion in thel form of a Venturi tube E, in 'which the velocity Qt the coming fluid such as air, is increase'd,"pro' ducing sub-atmospheric pressure since a Venturi tube has been found to be a convementV device for use in connection withr a regulator gauge of the form described.

A cylindr-ical-casing F is closed at the bottom by the block G and at thel top by the cover H, and is provided with the sightl opening J of glass or other suitable material. The block G is inV this instance mounted onthe floorline C andv is formed `l with a longitudinal passage K', which c0`1n municateswith the yintake DV through the pipeor tube L and serves to afford coinmunication between the intake D" and a reservoir O, which in this instance, vis in the form of an `inverted glass cup. A yoke Pis connected -to the' block Gr, as by the bolts Q,- and forms' a seat for one end of a coiled spring4 R, which bears againstA a| seat S on the reservoir O, thereby holding vthe reservoir in -position on the block G.

lVashers T of'felt or other Suitable material may be placed4 between the spring seat and' the reservoir, and between the reservoir and the seat S in order to prevent breakage 4of the reservoir. For supplying liquid," such aslmineral oil, or mercury Ato the 'cup or reservoir 0', a longitudinally extending passage Uis formed in the 4block G, and admission of liquid to the passage U 'is controlled by a valve V. In order to prevent the liquid from flowing' into' the intake D 1 from rthe reservoir, and to enable the air from the intake to pass to and from the surface of the liquid, a short pipe or tube vW is placed in 11p-right'positionin the yblock Gr and-is in communication with the passage K.

A 'tube X preferably of glass, is mounted 95 in 11p-right position ,in'the casingF,vin rear ofthe glfass window J, andis held in the block G by the glandnut Y andpack ing Z, and in the cover H by the gland 'nut c packing t. The upper end of them0 tube X is in communication with therei stricted portion E of the intakeD throughl the downtake pipe or tube c which has one end connected to the glandnutv a. Liquid from the reservoir O is drawn out into the tube X by the difference in pressure existing' i in thetubes W and c leading to the, intake as described. l

In" order to determine the fluidA volume Supplied t0 the turbo compressorv-A,"a drum 1.19

d calibrated in fluid volumes under standard conditions, 'is mounted on the upper and lower spiders e and f respectively, which are mounted in any suitable manner on the drum shaft g. The drum shaft g has a bearing at one end in the yoke P and at the other end in the cover H. The height ot the liquid column in the tube X due to the dili'erence in pressure existing at ditferent points in the intake D, indicates on the drum d the fluid volume sup-plied to the compressor. The drum may be of card board, paper, brass or other suitable material, and is Wrapped in any suitable manner about the spiders e and f. A movable head z, is secured to the drum shaft g by the p'in j and is provided with an indicator lo. A movable disc o loosely surrounds the drum shaft g and is calibrated in barometric inches and is also formed with upper gears p and lower gears g. The upper end portion of the cover H is provided With a scale r calibrated in degrees of temperature and is adapted to cooperate with aii indicator s on the movable disc 0 for changes in barometric conditions.

In order to adjust the drum Z for changes in barometric conditions7 a Worm t mounted on a shaft u having a lmurled head Jv, mesheswvitli the gear p, and by turning the head o the indicator k may be moved to indicate the barometric pressure on the movable disc o. A Worm 'w 'is mounted on a shaft fr, having a knurled head y, and meshes with the gear Q, and by rotating the head y, theindicator s may be moved to indicate the temperature on the scale r. The arrangement oi the Worms w and t is such that when one is rotated, tlie other one will be locked, so that when the head ti/ is ro-k tated, the Worm t will be locked to the gear p and the head L, drum shaft g and drum d, are all rotated. On the other hand when the head o is rotated, the Worm w Will be locked to the gear q and the movable head i, drum shaft g and drinn CZ are all rotated.

rIhe indicator 7c, at all times, indicates the barometric pressure and the indicator s at all times indicates the temperature. These two indicators may be adjusted by the heads o and y forv diiierent barometric conditions, so that the drum rZ will assume a correct position relative to the tube X, whereby the speed of tlie turbo compressor A may be increased or diminished, according to the indication given bythe height of the liquid column in the tube X relative to the volume scale, and in this manner, the correct tluid volume to supply a constant Weight of oxygen, may at all times be supplied to the turbo compressor A.

In the modification shown in Figures 4 and 5, the movable head t is rotatably connected to the drum shaft g by the pin j and is formed; with a` gear g which meshes scales t and u may be adjusted forthe existing barometric conditions. The indicator p may be set to indicate the barometric reading and then the scale u 'adi justed to the proper temperature. In all probability the barometric reading will remain the same throughout. the day andthe only change being the temperature, so that y setting the indicator p once-a day for the barometric scale, the only adjustment necessary, will be for the slight change in temperature.

By using a drum the correction curves. may be draw-n to a large scale, thereby` enabling a more accurate reading to be obtained than could be obtained with a plate on which the correcting -curve must be drawn to a smaller scale. y

I claim:

l. A volume regulator gauge for constant` volume governing of turbo blowers and turbo compressors, comprising arotatable drum having a scale calibrated in fluid volumes `under standard conditions, indicating means adapted to be subjected to the intake pressure voi the turbo machine adapted ,to indicate on the fluid Volumev scale'tlie fluid volume supplied to the turbo machine, and means for adjusting the drum relative `to said indicating means to compensate for` changes in barometric conditions, whereby the fluid volume supplied to the turbo machine may be determined at all times.`

2. A volume regulator gauge for constant volume governing of turbo blowers and turbo compressors, comprising a rotatable drum having a scale calibrated in luidvolumes under standard conditions, indicating means adapted to be subjected to the intake i conditions ot the turbo machine adapted to indicate on the fluid volume scale the fluid volume supplied to the turbo macliirimalld manually operated means for adjustingthe drum relative to said/indicating means to compensate for changes in barometric conditions, whereby the fluid volume supplied i to the turbo machine may be determined at all times.

3. A volume regulator gauge for constant volume governing of turbo blowers andV turbo compressors, comprising a rotatable drum having a scale calibrated in fluid vol umes under standard conditions, liquid com turbo compressors, comprising a casing hav.

ing a sight opening, a cover for one end of the casing, a shaft having a bearing in the cover, a rotatable drum calibrated in fluid volumes under standard conditions car# ried by the shaft, liquid containing means containing a liquid column adapted to be subjected to the intake conditions of the turbo machine adapted to cooperate with the iuid volume scale, and manually operated means for adjusting the drum relative to said 'liquid column to compensate for changes in barometric conditions, whereby the fluid volume supplied to the turbo machine may be determined at all times.

5. A. volume regulator gauge for constant volume governing of turbo blowers and turbo compressors, comprising a casing hav.- ing a sight opening, a cover for one end of the casing 'having a scale calibrated in degrees of temperature, a movable member having a scale calibrated 1n barometric inches adapted to be adjusted relative yto the temperature scale for changes in barometric conditions, a drum in the casing calibrated in fluid volumes under standard conditions adapted to be adjusted for different barometric conditions by saidl movable member, and indicating means adapted to be subjected to the intake conditions of the machine, vadapted to indicate on the fluid volume scale the Huid volume supplied to the turbo machine.v

6. A volume regulator gauge for constant volume governing of turbo blowers and turbo compressors, comprising a base member, a reservoir carried by the base member, a cylindrical casing having one end closed by the base member and also having a sight opening, a cover for said casing having a scale calibrated in degrees 'of temperature, a shaft-'in the casing, a drum carried by the shaft calibrated in fluid volumesk under standard conditions, a movable member calibrated in barometric inches adapted to cooperate with said temperature scale for ad. justing the drumvfor different barometric conditions, and liquid containing means containing a liquid column adapted to be subjected to the intake conditions of the machine for indicating on the fluid volume scale the fluid volume supplied to the machine.

In testimony whereof I have signed this specification.

FORREST C. REED. 

